Toothbrush



Oct. V2l, 1930. s, TOLMACH 1,779,057

TOOTHBRUSH Filed Nov. 5, 1929 BYMm/9LM v TToRNEx/.s

Patented Oct. 2l, 1930 SAMUELY'TOLMAci-,

' Application ledNovember This invention relates to improvements intooth brushes and especially to the kndinV which the brush may beadjusted relatively tothehandle to facilitate access A'to all the V `f5surfaces ofthe teeth vfor thorough and propj anyv suitable linanner`;}tlie"fhandle posed offany Vjsuit'abl'e'rnDin-'metal er cleaning. Y

An object of the'invention is to provide a brush with means to afford avmaximum range of adjustment so that it may be set to 110 numerouspositions relatively tothe handlev vhandle may `always extendlsubstantiallyA perpendicular to the aceirre?y and so that the spectiveofthe position of the brush thereon.

Anothery object of the inventiony 1s to pro.-

V"51'5 vide a toothbrush` having a universal .ad-j

justment, which yis strong and simple in con# structionV and which maybe vmanufactured economically. j

Features andV advantages will'hereinafter V20 appear.-

- In theidrawings.- n n Fig. 1y isa side` elevation of myV tooth brush.i.

Fig. 2 isla detail sectional view, on a larger "'25 scale showingconstruction of the universal joint;

Fig. s is L Side view, partly in sacabanlustrating another form of theinvention.

Fig. 4 is aV` side view of still another :form

I "30 of the invention. y l .y

1 f Fig. 5 isjaitop plan viewofv the brush7` shown in'F'g.' 4, removedfrom Aits holder.

Fig. 6 is a top plan view of the brush part shown in Figs. v1 `and 3.4 YY K Fig. 7 is a still further form of the invention. V'

Similar reference characters: .represent similar parts throughoutthe-several views. j

' A brush 10 is' supported on va handle 11 by means of a universal joint12;` the.` uni--r versal joint' including'aloall 13 and a socket Y A 5V',ball@.1l1;1"10.1f1gli'.the'Opening The ball 18 is preferablysecuredtof the f brush 10 sovvthat the, latter may readily? 45 iberemoved from the?A holder *forsubstitution Y by a new one. In order tosecure the loall to the brush it `may loe, provided with a stem 1 "I y.'15 secured vto a-platey lf3-embedded in the v back 17 of the brushnlany convenientman-l i 14 into which the ball lits.

improved oFnEW YORK, if*

tionf20: and adaptedvto engage tapered 'shoul dersy 24C on thejaws'18'`r and 19l tovforceisajd jaws ltogether fand vthus. Clamp Vthehallsuf j iciently tightto prevent accidental4` displace 1 ment' 'of' thebrush relativ ly :t thef han universal joint ,'12 the lnut'r fedtowards:i saidjoint. To yprevent accidentalloosenk.; ing'ofthe shank 21whilethe .universal f y loein'g4` tightenedthe' thread 'on' "said "10Vshank may. be in a directionfwhi'ch, tends to'l 'screw4 said shankfurther "finto". tlieljbru' 1 By @inspecties 'of' ings? 1 salia twin i floe understoodthat the "stemfv v151 is fperpendic.y '115;y ular, tothe"brush and thatthestemv may not onlyV be rotatedaho'utits'axissbiit'that' said .stem linaybe.; adjusted inf. anyV -V radial posi tinrelatively Vto'fjthe .centeito'i the 'loa'll 135,

receiving: 'end .vof-1v said. j jaws? rAccordingly the-,brush mayfberotated @totally iangfilar may be set with .its-facein anyangular-.pos'i- Y ball 13.?. nl

l-Injorder to-rem0vel-the i YVtion v2.() far enough. topermit the jaws41:8 llm;

and`19` to be swung apart while pulling fthe-r ,f

tol ornithe handle Fig withinl the. range of the iopening-25-atfthe 80.v'

I' so 23a is threaded on to the holder 2 9 andis provided with inclinedvshoulders 24a to engage the socket portions of the jaws to clampsaldjaws against the ball 13 and thus holdl the brush against accidentaldisplacement;

To give a wider range of adjustment of the brush the free ends ofthejaws rnay extend perpendicularly to their stems 20a and the jaw 19atmay be cut out at 30;`

' to preventadisplacement Y In the form of the invention stem15h-provided with a threaded end 31 shown in Figf- 4 the brush 10b hassecred thereto Ta `bent dinally thereof, the free end of said sleeveengaging the socket forming portionof said jaws to hold the saine inclamped position against theball. i

VIn testimonywhereof I have aiiiX'ed my signature to this specification.3

j sAMUEL ,TQLMACH by which it may be detachably secure'dtoa stem 15cextending from.ball{13li Theball is located in a socket 14a suitablysecured to Vthe handle V-11b,`fand an Vinturned end. 341:` lof alnut orcoupling threaded on the stein coupling that the ball'may be iirrnlygripped formsdby a may' Y 32in'the end of a portion 33 which may be ofthe brush 10b.

portion V33'. Itwill I i readily be understoodthat by means oftheVIn-Fig. `'7 the invention includesatubular brush holding element 36whichmay besecured to aireducedv portion 37 of theffhandlev 11cbyrpressing portions38 of theelernent 36"into 'depressions 39,0f thehandle portion Vbodiments Vshown in the The is slightly tapered and isprovided that the-'jaws maybe tightened against the ball byv nut 239threadedfontothe-stein 20c.V l

Y if v"It-ivill beunderstood that in any. form theV nut is utilizedtotighten the jaws sufficiently Y on the ball'to hold the brush'againstacci-V dental; displacement but that the position of the brush may bechanged atl will `withcjmt loosening the nut,v being also used to takeup `wear ofthe ball in its. socket; It will also be understoodfthat incert-ain forms of the invention the `nutinay bescrewedbalrfar enoughtoienable-the jaws tolbe sprung apart, "suliciently-V to permit A.ofremoval and i'ns'er# tion of therball relatively tol/the socket when'vreplacing ythe brush'element. Y Having thus described the inventionIfdo not desire to limit myself to the specific ern'- illustrati-ve andthere `being other variations that fall withinthe Ascope of`thevrappended vIn a tooth brush', the 'cornbinationioaitriotliA brush,Vafhandle therefor, a V univers'al joint Y interposedF between `s aidb lments5 jawsV Acarried by the rushangdghadi f comprising aball carried byone :ofsaidele` V V otheroffsaid ele'- drawlngsythese being Y f1 12o-n1`ents,rsa-id' jawsforminga socket forsaid Vball,*^orie ofisaidelements threaded iSleeve A .A having "a thread? i i v"edjshanklandaninternally Y 5 Carried by: fsaid shank( andi Vmovablerl'ogi'tw"

